64/256 LED SMD Dot Matrix Advertising Screen Welding Soldering Practice DIY Kit

This kit features a display unit composed of 64 0805 surface-mount LEDs. Using row-column scanning, it can display any 64-pixel character, such as numbers. Upon power-up, it displays: vertical row-by-row illumination → full-screen illumination with 2 flashes → horizontal row-by-row illumination → sequential countdown display of characters 9-0 for advertising.

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